Time-lapse fluorescence microscopy movie of oscillating droplets,
showing that smaller droplets have larger variability in the frequency
of their oscillations. By the end of the roughly 17 hour duration of
the experiment, the chemical energy sources driving the oscillations
have been depleted, and the reaction settles down. (Motion of the
droplets midway through the movie are due to spurious fluid flow in
the microscopy set-up, and are not relevant to the phenomena being
studied.) The 'sustained' tuning of the oscillator is used. This movie was
taken by our collaborators at the Technical University of Munich (TUM).